Boosting activity of Ni(OH)2 toward alkaline energy storage by Co and Mn co-substitution

Yawei Yu; Jiangchuan Liu; Yanling Zhang; Kefan Song; Xiaohui Hu; Yunfeng Zhu; Xiulan Hu

doi:10.1016/j.jallcom.2022.164704

Boosting activity of Ni(OH)₂ toward alkaline energy storage by Co and Mn co-substitution

Yawei Yu, Jiangchuan Liu, Yanling Zhang, Kefan Song, Xiaohui Hu, Yunfeng Zhu, Xiulan Hu

College of Materials Science and Engineering

Nanjing Tech University

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Ni-based hydroxides nanomaterials are widely used in alkaline storage devices. Under the guidance of density functional theory calculations and experimental investigations, here, (Ni_0.8Co_0.1Mn_0.1)(OH)₂ is designed and prepared on CuO nanowire arrays, demonstrating Co and Mn co-substitution resulted in enhanced capacity and stability of Ni(OH)₂. The enhanced performance is mainly thanks to the low deprotonation energy and the facile electron transport, which results from the synergistic interactions among Ni, Co and Mn. Ni-Zn battery and alkaline hybrid supercapacitor with (Ni_0.8Co_0.1Mn_0.1)(OH)₂ (8.4 mg cm⁻²) as positive electrode can achieve infusive energy density of 605.2 and 270.1 Wh kg⁻¹, respectively. The finding lay a foundation for further the design and fabrication of high-performance Ni-based nanomaterials for alkaline energy storage.

Original language	English
Article number	164704
Journal	Journal of Alloys and Compounds
Volume	908
DOIs	https://doi.org/10.1016/j.jallcom.2022.164704
State	Published - 5 Jul 2022

Keywords

Alkaline hybrid supercapacitor
Cation-substituting
Hydroxides
Nickel-zinc battery

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10.1016/j.jallcom.2022.164704

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title = "Boosting activity of Ni(OH)2 toward alkaline energy storage by Co and Mn co-substitution",

abstract = "Ni-based hydroxides nanomaterials are widely used in alkaline storage devices. Under the guidance of density functional theory calculations and experimental investigations, here, (Ni0.8Co0.1Mn0.1)(OH)2 is designed and prepared on CuO nanowire arrays, demonstrating Co and Mn co-substitution resulted in enhanced capacity and stability of Ni(OH)2. The enhanced performance is mainly thanks to the low deprotonation energy and the facile electron transport, which results from the synergistic interactions among Ni, Co and Mn. Ni-Zn battery and alkaline hybrid supercapacitor with (Ni0.8Co0.1Mn0.1)(OH)2 (8.4 mg cm−2) as positive electrode can achieve infusive energy density of 605.2 and 270.1 Wh kg−1, respectively. The finding lay a foundation for further the design and fabrication of high-performance Ni-based nanomaterials for alkaline energy storage.",

keywords = "Alkaline hybrid supercapacitor, Cation-substituting, Hydroxides, Nickel-zinc battery",

author = "Yawei Yu and Jiangchuan Liu and Yanling Zhang and Kefan Song and Xiaohui Hu and Yunfeng Zhu and Xiulan Hu",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

year = "2022",

month = jul,

day = "5",

doi = "10.1016/j.jallcom.2022.164704",

language = "英语",

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TY - JOUR

T1 - Boosting activity of Ni(OH)2 toward alkaline energy storage by Co and Mn co-substitution

AU - Yu, Yawei

AU - Liu, Jiangchuan

AU - Zhang, Yanling

AU - Song, Kefan

AU - Hu, Xiaohui

AU - Zhu, Yunfeng

AU - Hu, Xiulan

PY - 2022/7/5

Y1 - 2022/7/5

N2 - Ni-based hydroxides nanomaterials are widely used in alkaline storage devices. Under the guidance of density functional theory calculations and experimental investigations, here, (Ni0.8Co0.1Mn0.1)(OH)2 is designed and prepared on CuO nanowire arrays, demonstrating Co and Mn co-substitution resulted in enhanced capacity and stability of Ni(OH)2. The enhanced performance is mainly thanks to the low deprotonation energy and the facile electron transport, which results from the synergistic interactions among Ni, Co and Mn. Ni-Zn battery and alkaline hybrid supercapacitor with (Ni0.8Co0.1Mn0.1)(OH)2 (8.4 mg cm−2) as positive electrode can achieve infusive energy density of 605.2 and 270.1 Wh kg−1, respectively. The finding lay a foundation for further the design and fabrication of high-performance Ni-based nanomaterials for alkaline energy storage.

AB - Ni-based hydroxides nanomaterials are widely used in alkaline storage devices. Under the guidance of density functional theory calculations and experimental investigations, here, (Ni0.8Co0.1Mn0.1)(OH)2 is designed and prepared on CuO nanowire arrays, demonstrating Co and Mn co-substitution resulted in enhanced capacity and stability of Ni(OH)2. The enhanced performance is mainly thanks to the low deprotonation energy and the facile electron transport, which results from the synergistic interactions among Ni, Co and Mn. Ni-Zn battery and alkaline hybrid supercapacitor with (Ni0.8Co0.1Mn0.1)(OH)2 (8.4 mg cm−2) as positive electrode can achieve infusive energy density of 605.2 and 270.1 Wh kg−1, respectively. The finding lay a foundation for further the design and fabrication of high-performance Ni-based nanomaterials for alkaline energy storage.

KW - Alkaline hybrid supercapacitor

KW - Cation-substituting

KW - Hydroxides

KW - Nickel-zinc battery

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DO - 10.1016/j.jallcom.2022.164704

M3 - 文章

AN - SCOPUS:85126994859

SN - 0925-8388

VL - 908

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

M1 - 164704

ER -

Boosting activity of Ni(OH)₂ toward alkaline energy storage by Co and Mn co-substitution

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Keywords

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